Fire Codes | SBC Magazine

Wood Walls Framed for Fire

Since FRTW studs are allowed in wall assemblies that are otherwise defined as non-combustible, building and truss designers often confront the question does a joint between the wall and the roof or floor assembly mean that those elements of the building also require noncombustible material, like FRTW? To answer this, we need to study the IBC

Bottom Chord Live Load Concurrency and Truss Design - Educational Program

This presentation seeks to explain how to correctly apply live loads to the bottom chord of trusses for uninhabitable attics in accordance with IRC Table R301.5 and IBC Table 1607.1 and ASCE 7-10 Table 4-1.

A Designer’s Guide to FRTW

Quality marks are not substitutes for grade marks—FRTW will include both!

Fire Assemblies: Performance and Application Using Wood Trusses - Educational Program

This presentation provides an overview of fire-rated assemblies that include wood trusses. Topics covered include assembly testing, Harmathy’s rules, and an examination of fire performance in the field.

One Hour Fire Rated Assemblies

Question:

The Gypsum Association “Fire Resistance Design Manual” (GA-600-12) lists file RC2601 with two layers of 5/8 in. gypsum wallboard (GWB) on wood joists.

Fire Rating For Truss Assemblies Built With 2x3 Lumber

Question:

Are there any published studies or guidelines on the fire rating of floor trusses built with 2x3 lumber?

Metal Connector Plates In Fires

Question:

I am thinking of using wood trusses for the roofing/ceiling structural systems on some houses I shall build. I remember, though, an engineer/volunteer fireman commenting back in 1989 that the connector plates are prone to expand and pop off, early on in a fire, causing catastrophic structural failure. Was this the case, and if so, has this problem been corrected?

Fire Damage Assessment

Question:

How do you evaluate whether a metal plate connected truss is still usable after exposure to fire? Are there any recommended tests?

Fire Rating For Sloped Roof Truss Assemblies

Question:

A question has come up concerning sloped roof trusses and fire assembly ratings. Some are reluctant to rely on test results from flat (parallel chord) trusses applied to sloped roof trusses. Do you have any information regarding the suitability of the fire rated ceiling assemblies for sloped roof trusses? Does the “minimum depth” requirement of the parallel chord assembly apply to the minimum depth of a sloped roof truss (i.e., heel height?)

Information On Frt Roof Trusses

Question:

I need to obtain some information on fire-retardant-treated roof trusses.

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